| Author |
Message |
    
Toid
| | Posted on Saturday, September 01, 2001 - 10:40 am: | 
|
Some of the oldtimers I talk to in the morning use the formula: Everytime you double your power you gain 1/2 an S-unit. Let's say you are putting an s-7 on someone with 100 watts if you go to 200 watts S-71/2... 400 watts 8 s units 800 watts 8.5 s units and to gain 2 S units one would have to go to 1600 watts. Is formula correct or flawed? The locals stand by it %100. |
straycat
| | Posted on Saturday, September 01, 2001 - 12:46 pm: |
|
That is correct. I am a licensed radio operator and that is the correct formula. Most of the hams here in the Texas area run from 400 to 800 watts on 75 meters and you can't tell much difference from one who runs legal limit (1500). I personally run 150. I've found that 100 watts dead key on 11 meters AM will get you all the flat out range (no skip conditions) you want- any more and you'll outalk your ability to hear. On SSB 300 seems to be a good PEP number for skip, but of course when conditons are good 12 watts can make you a big gun, while barefoot 25-30 works good locally. Others may disagree with me but this is my personal experience. |
bruce
| | Posted on Saturday, September 01, 2001 - 11:16 pm: |
|
they are correct to double your range you have to 4 times the power
this is why QRP is so much fun i have worked 2000 miles on .06 watts on 50 MHZ and with a 1 watt walkie talkie from the east of orlando wotked back to my home repeter in largo 120 miles away on 146
and with a .4 watt UHF handheld on a real good tropo worked 150 miles to stark fl from the jail parking lot in clearwater when things are right power means little.
by the way most " S" meters are at best useless do not beleve them |
|
